SMART 451 engine does not start Error P1800

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SMART 451 engine does not start Error P1800


Good morning

today we offer you the solution to the case at hand .

After changing the clutch and clutch engagement/disengagement actuator the machine does not start

In the instrument cluster, with the ignition key set to ON ( gear ), the three dashes of the display flash in place of the letter 'N' indicating the neutral position of the gearbox.

There is no starter motor drive, i.e. there is no +50 and therefore no engine start.

Engine management ecu diagnosis presents us with the following error:   P1800 clutch initialisation required.

The solution to the problem is to perform the manual initialisation procedure, which consists of the following steps :

PROCEDURE

make sure that the battery voltage is regular. If the voltage is low, I recommend changing the battery or using a back-up battery.

- switch on the ignition;
- Set the gear selector to 'N';
- press the brake pedal for about 5 seconds.

When finished, the letter N appears and the machine can start the engine

PLEASE NOTE

If the procedure is started correctly, a sequence of gearbox adjustments starts and a noise is heard from the transmission actuators that returns the gearbox position to Neutral.

I would like to report that the case was resolved by telephone assistance this morning with the Magneti Marelli Checkstar ZINGARELLI workshop in Trani (Ba).
Good work to all and greetings from
Antonio
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